use std::cell::RefCell;
use std::convert::Infallible;
use std::rc::Rc;
use std::sync::Arc;

use avril_caps::Capabilities;
use avril_core::Op;
use avril_host::environment::Environment;

use avril_host::io::response;

pub fn ops(caps: Arc<Capabilities>, environment: Rc<RefCell<Environment>>) -> Vec<Op> {
    vec![
        Op::new("op_env_get", {
            let caps = caps.clone();
            let environment = environment.clone();
            move |name: String| {
                Ok::<_, Infallible>(response(environment.borrow().get(&caps, &name)))
            }
        }),
        Op::new("op_env_set", {
            let caps = caps.clone();
            let environment = environment.clone();
            move |(name, value): (String, String)| {
                Ok::<_, Infallible>(response(environment.borrow_mut().set(&caps, &name, value)))
            }
        }),
        Op::new("op_env_delete", {
            let caps = caps.clone();
            let environment = environment.clone();
            move |name: String| {
                Ok::<_, Infallible>(response(environment.borrow_mut().delete(&caps, &name)))
            }
        }),
        Op::new("op_env_to_object", move |(): ()| {
            Ok::<_, Infallible>(environment.borrow().to_object(&caps))
        }),
    ]
}